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Peter and Mickey spend the hour in conversation with political author Chris Hedges; his latest book is “Wages of Rebellion: The Moral Imperative of Revolt.” The discussion covers issues from freedom of information to U.S. Middle East interventions, and the ideas of intellectuals from W.E.B. Dubois to Cornel West to Sheldon Wolin.

Introduction One of the greatest threats to the survival of the human species and the biosphere is catastrophic climate change. Scientists warn that if the transition to renewable energy does not happen within very few decades, there is a danger that we will reach a tipping point beyond which feedback loops, such as the albedo effect and the methane hydrate …

In case you weren’t already worried about the current and rapid acidification of the world’s oceans, a new report by leading scientists finds that this very phenomenon is to blame for the worst mass extinction event the planet earth has ever seen—approximately 252 million years ago. The findings, published this week in the journal Science by University of Edinburgh researchers, raise serious concerns about …

Changes to the Earth’s oceans, caused by extreme volcanic activity, triggered the greatest extinction of all time, a study suggests. The event, which took place 252 million years ago, wiped out more than 90 per cent of marine species and more than two-thirds of the animals living on land. It happened when Earth’s oceans absorbed huge amounts of carbon dioxide …